From 036a60a0955c274243c0647d2dd11928c2f30867 Mon Sep 17 00:00:00 2001
From: Tobias Fella <fella@posteo.de>
Date: Sat, 28 Oct 2023 00:20:01 +0200
Subject: [PATCH] Don't linkify urls in code blocks

BUG: 475301
---
 src/texthandler.cpp | 51 ++++++++++++++++++++++++++++++++++++++++++---
 1 file changed, 48 insertions(+), 3 deletions(-)

diff --git a/src/texthandler.cpp b/src/texthandler.cpp
index ea6a89f88..c5a9147ee 100644
--- a/src/texthandler.cpp
+++ b/src/texthandler.cpp
@@ -429,9 +429,54 @@ QString TextHandler::unescapeHtml(QString stringIn)
 
 QString TextHandler::linkifyUrls(QString stringIn)
 {
-    stringIn = stringIn.replace(TextRegex::mxId, QStringLiteral(R"(\1<a href="https://matrix.to/#/\2">\2</a>)"));
-    stringIn.replace(TextRegex::plainUrl, QStringLiteral(R"(<a href="\1">\1</a>)"));
-    stringIn = stringIn.replace(TextRegex::emailAddress, QStringLiteral(R"(<a href="mailto:\2">\1\2</a>)"));
+    QRegularExpressionMatch match;
+    int start = 0;
+    for (int index = 0; index != -1; index = stringIn.indexOf(TextRegex::mxId, start, &match)) {
+        int skip = 0;
+        if (match.captured(0).size() > 0) {
+            if (stringIn.left(index).count(QStringLiteral("<code>")) == stringIn.left(index).count(QStringLiteral("</code>"))) {
+                auto replacement = QStringLiteral("<a href=\"https://matrix.to/#/%1\">%1</a>").arg(match.captured(2));
+                stringIn = stringIn.replace(index, match.captured(0).size(), replacement);
+            } else {
+                skip = match.captured().length();
+            }
+        }
+        start = index + skip;
+        match = {};
+    }
+    start = 0;
+    match = {};
+    for (int index = 0; index != -1; index = stringIn.indexOf(TextRegex::plainUrl, start, &match)) {
+        int skip = 0;
+        if (match.captured(0).size() > 0) {
+            if (stringIn.left(index).count(QStringLiteral("<code>")) == stringIn.left(index).count(QStringLiteral("</code>"))) {
+                auto replacement = QStringLiteral("<a href=\"%1\">%1</a>").arg(match.captured(1));
+                stringIn = stringIn.replace(index, match.captured(0).size(), replacement);
+                skip = replacement.length();
+            } else {
+                skip = match.captured().length();
+            }
+        }
+        start = index + skip;
+        match = {};
+    }
+    start = 0;
+    match = {};
+    for (int index = 0; index != -1; index = stringIn.indexOf(TextRegex::emailAddress, start, &match)) {
+        int skip = 0;
+        if (match.captured(0).size() > 0) {
+            if (stringIn.left(index).count(QStringLiteral("<code>")) == stringIn.left(index).count(QStringLiteral("</code>"))) {
+                auto replacement = QStringLiteral("<a href=\"mailto:%1\">%1</a>").arg(match.captured(2));
+                stringIn = stringIn.replace(index, match.captured(0).size(), replacement);
+                skip = replacement.length();
+            } else {
+                skip = match.captured().length();
+            }
+        }
+        start = index + skip;
+        match = {};
+    }
+
     return stringIn;
 }